GT500B系列电机智能监控装置主要功能为操作交流电动机控制回路中的接触器，实现电机的起停操作，支持电动机的直接起动、双向起动和星三角起动，并针对过热、过负荷、堵转、欠流、不平衡、接地、漏电、欠压、过压晃电等故障对电动机予以保护，此外可实现测量、告警、显示、通讯等功能，适用于交流50Hz、额定电压至220～660V、额定电流1A～1200A的交流电动机。该产品是我公司按IEC国际标准开发的智能化、网络化、数字化低压电机保护控制装置。采用模块化设计结构，产品体积小，结构紧凑，安装方便，可分散式安装全面实现保护、测量、控制一体化。

The main function of GT500B series motor intelligent monitoring device for the operation of AC motor control contactor circuit, realize the motor start and stop operation, support motor direct starting, starting and double star delta starter, and for overheating, overload, locked rotor, under current and imbalance, grounding, leakage, undervoltage and overvoltage. Electricity failure to protect the motor, also can realize measurement, alarm, display, communication and other functions, suitable for AC motor in AC 50Hz, rated voltage 660V, rated current to 220 ~ 1A ~ 1200A. This product is our company according to IEC international standard development of intelligent, network, digital low-voltage motor protection control device. The modular design structure, the product size, compact structure, easy installation, decentralized installation, fully realize the protection, measurement, control integration.